Charles schneider



l have invented an- Improved Mode Dressing Millstone's;

lowing to be a full and exact description of the same,

Ahung in the-usual manner.

f dle to the runner.

Zine-na sans gaat cypra Letters Parmv0.1o5,4cc,daaa .my 19,1810.

IMPROVEMENT IN HANGING -IIVIILL-SLON'IElS.

The `Selinunte referred to ln theseLettots Patent and making part of thelame. r

To all whom it may oon-cern Y Be it known that I, CHARLES; SGHNEIDER, ofGalion, in the` county of Crawford and State of Ohio, of Hanging and andI do hereby declare the folreference being had making part of thisspecification.

My method of hanging stones applies to that class of mills in which theunder" stone is the runner, and one important feature of my inventionconsists in sccnring Vthe upper end of the' spindle toa'cast-ironbedplate, in which `the runner'is securely fixed, thus making a stilhanging7 for the stone.

Another important feature of my improvement conto the accompanyingdrawing sists in the manner of connecting the driving pulleyrr (whichturns loosely on the spindle) to the bed-plate of the runner, by meansof Asuitable springs, one end of the said springs being secured to theunder side of the `bed-plate, andthe other to the rim of the driving.pulley,rthus removing all the` torsion or twisting strain v,fronrthespindleand transferring it to therunuer at a distance from the center ofrotation corresponding to 4 the radius of the pulley.

Another important feature of my invention consists in trning the spindleby means of' tripple boxing provided with set-screws, s o that it may beadjusted to run truly vertical. A This `boxing is so placed that it maybe oiled when the mill is running.-

Another important lfeature of my invention consists iu the mannerofbalancing ,the stone when not running, and before the spindle issecured thereto, so'that it maybe in stauding balance7 and also inrunning balance, which is `not generally the case with stonesAnother'important 'featureof my invention consists in the peculiar modeof dressing the stones. ln my mode of dressing, leading furrows aredispensed'with,

, and but twelve short furrows, extending only through .the skirting,.are used. fur-rows, and the eye of the vstone is left forgrinding No draft is given, to-thc surface. A complete descriptionofthis mode of dressl ing will `be given further on.v

Figure 1 is a plan cr bottom view ofthe mill, showing the driving-pulleyand mode of securing the spin- Figu're 2 isv a side elevation of thesame. Figure 3 isa planof4 the adjustable spiudlefbcaring. 1

' Figure 4 is the plan of a stone, showing the manner of dressing. .l vFigure is a side view of the runner, partly breiten` l away to show themode of balancing thestcne ou the spindle.

and lowering the runner, all of which are arranged ill the ordinary way.Y

The runner D rests on a cast-iron bed-plate, E.'

The spindle F (usually of steel) has a cap or coupling-flange, b, caston it, by which it is rigidly secured 'to the hed-plate, the latterbeing provided with a boss, 0, to receive the securing-screws or bolts,as shown.

Projecting lips or flanges, d d, are cast on the under side of thehed-plate, between which are secured the upper euds of the springs G G,the lower ends of the said springs being secured to the verge of theloose driving-pulley H in a similar manner. 'By this ar-y rangement theinertia at start-ing, and cheeks'while running, are overcome muchmorc-1`eadily than iu. the ordinary way of using springs, as theleverageis greater, and all extra twisting strains on the'spindle are eutirelyavoided.

` The spindle is stepped at the bottom, as shown, and is provided with abearing for lateral adj ustmeut, which` may be placed immediately underthe driving-pulley. .This bearing is shown in plan in fig. 3, andconsists ol' a radial frame, I, provided with triple boxing, e e slidingin suitable openings iu the said. frame, shown, and capable of"heingadjusted laterally by'-` means ofxset-scrcws, f f f, or other equivalentdevicel,

By this arrangement the spindleniay be vertically adustcdsor lumbed withthe greatest nicety.

Before the boss c of -the bed-plate is bored te refl ceive the screws bywhich 1t 1s attached to the spin-1 die, a balancing-pin, g, isv insertedin a hole in th/ecentcr of the'runner, the other cnd f lthe said Apinresting in a hollow in the' upper end of the spindle., As the hole inthe runner and through the bed-plate, to which the runner is secured, islarger than the balancing-pin, the stone may be moved suliicieut tobalance itaccu-V rately. The boss c is then marked, and the holes boredVto correspond with those in the cap of the spindle.

The runner is .then raised audthe pin g removed.

lhe spindle is then secured to the ruunelyandthe stone is in balance,both standing and running. In my mode of dressing millstones, I 'discardall leadingfurrows, cut-ting only twelvevshort furrows,

which leaves all that portion of the storie technically called the eyefor grinding surface. I give the furrows no draft, but radiate them fromthe center of thestone.l 'i

In the mode of dressing in common use, the back ofthe furrows cre cutperpendicular tothe face of the stone, or nearly so, and are quite deep.This causes the Hour to pack and glaze in the furrow, which heats andinjures it. I avoid this by cutting the furrows much wider and abouthalf as deep as usual, and giving th'e back an angle very acute with theface of the stone.

By leaving the eye of the stone free from furrows, the grain is deprivedof its hull before it isground, thus givinga greater yield of our thanwhen the hull and grain are ground upv together.

The result in stones dressed by my mode is almost whglly bran und flour,very little "shipstui" being ma c.

I do not claim, exclusively, the use of springs; but

Having thus described my invent-ion;

What I claim as new, and desire to secure by'Lettels Patent, is

1. The bed-plate E, snrroundingthe.bottom of the I runner and having aprojecting boss lor hub, c, in

combination with the'spindle F, with its ange'b, secured to the saidboss 0, in the manncrand for the purpose herein specified.

2. The springs G G and driving-pulley H, loose upon the spindle F, incombination with the bed-plate E vof the runner D, substantially as andfor the purpose herein set forth.

3. The construction and arrangement of the frame I, sliding boxes e e e,and adjusting-screws f f f, in combination with the spindle F, securedrigidly to the runner D by its flange b and the bed-plate E, for thepurpose hereinspecified.

4. In combination with the spindle I lange b, arranged to form a sti`bearing for the runner, the balancing-pin g, when used substantially inthe manner described, to put the stone in bed-plate E, boss c, and

Witnesses:

HENRY GONNELLY, JOHN R. TEMPERLY.

proper standing'balancc so that it may, at thel

